Cleaning device for hydrocarbon-vaporizers.



JQ DANISGHEVSKI.

CLEANING DEVICE FOR HYDROCARBON VAPORIZERS.

APPLICATION FILED MAYL. 190B.`

Patented Jan. 18, 1910.

l Her Witnesses: a. Z6

UNITED STATES PATENT OFFICE.

JOSEPH DANISCHEVSKI, OF ST. PETERSBURG, RUSSIA.

CLEANING DEVICE FOR HYDROCARBON-VAPORIZERS.

Specification of Letters Patent. Patented J 3,11, 18, 1910,

Original application led August 11, 1906, Serial No. 330,254. Dividedand this application led May 1, 1908. Serial No. 430,401.

To all whom it may concern:

Be it known that I, JOSEPH DANiscI-Inv- SKI, a subject of the RussianEmperor, and residing at St. Petersburg, in the Empire of Russia, haveinvented certain new and useful Improvements in Cleaning Devices forHydrocarbon-Vaporizers, of which the following is a specification.

This invention relates to incandescent hydrocarbon-lamps, such asdescribed in my original application, filed August 11th, 1906, SerialNo. 330254, of which application this is a division.

The present invention, forming the subject-matter of this application,refers more particularly to vaporizers, used in connection with suchlamps, and the object of my invention is to provide means for readilycleansing the vaporizers, and in order that the invention may be betterunderstood, reference is had to the accompanying drawing, in which-Figure l is a top view and Fig. 2 a section on the line 2--2 of Fig. l.Fig. 3 a longitudinal section of a straight portion of the vaporizingtube, showing the cleaning device in position, and Fig. 4 a sectionalview on the line 4 4 of Fig. 3.

The vaporizer shown in Figs. l and 2 consists of a single drawn tube,which is bent in the shape of a spiral or it may be bent in some othershape, the tube being so located, as to receive the heat from theburning lamp. For cleaning such tubes, it has been proposed to usewire-coils, covered with a layer of asbestos, which coils wereordinarily placed in the tube, where the beat is great est. It also hasbeen proposed to fill the tubes with thin sticks or stems of poorlyconducting material. The inventor, however, has found that a much betterresult can be obtained for quickly and thoroughly cleaning the tube byplacing therein a series of washers, which washers are connected bymeans of a central rod, the Washers being made of a heat insulatingmaterial, such as asbestos. By using such a cleaner, the same may beeasily removed, after which the washers can be taken from the rod andcleaned and then be assembled again and put back into the tube, all ofwhich can be done quickly and conveniently.

As shown in Fig. 3, the washers 76 are placed on a rod 75, which itselfis inserted in the vaporizer tube 27. The end of the rod 7 5 is providedwith a screw-thread, on which a nut 7 7 is screwed, to hold the washersin place. Instead of a nut and screw thread, of course, other means canbe used for the same purpose. When it becomes necessary to clean thetube 27, the rod 7 5 together with the washers 76 placed thereon ispulled out. After the nut 7 7 has been unscrewed, the washers 76 may beeasily removed from the rod and cleaned by means of a brush or the like,after which they are again placed on the rod.v

The washers may be of any desired shape. In the drawing they are shownas provided with rounded edges, so that they will not offer muchfriction when the rod 7 5 is inserted into the tube or removedtherefrom.

What I claim and desire to secure by Letters Patent is:

1. A cleaning device for the vaporizer of an incandescent hydrocarbonlamp, comprising a rod and a plurality of heat insulating washersremovably placed on said rod, and means for holding the washers on therod.

2. A cleaning device for the vaporizing tube of an incandescenthydrocarbon lamp, comprising a rod adapted to be inserted in thevaporizer tube, a' plurality of heat insulating washers removably placedon said rod, and a nut adapted to be screwed on to the end of said rodto hold the said washers in place.

In testimony whereof I afliX my signature in presence of two witnesses.

JOSEPH DANISCI-IEVSKI.

Witnesses:

H. A. LovmeUINn, Enwn. WAAscHInDT.

